Form for building columns and beams



June 7, 1932. w. G. VENARD FORM FOR BUILDING COLUMNS AND BEAMS 1 H y 1fl 5 j n w\ H m Z A 2 m u w June 7, 1932.

w. G. VENARD FORM FOR BUILDING COLUMNS AND BEAMS,

Filed Aug. 6, 1930 2 Sheets-Sheet 2 & M4

INVENTOR latented June 7, 1932 Unites STAT-ES WILLIAM G. VENARD, OF LOSAN GELES, CALIFORNIA FOR-M FOR BUILDING COLUMNS ANDBEAMS 7 Applicationfiled August 6, 1930. Serial No. 473,380.

This invention relates to improvements in building forms andparticularly to forms'tor making beams and columns of buildings in thecourse of erection, especially plastic columns and beams.

One of the objects of the present invention to provide a simple,eficient and inexpensive concrete beam and column building form designedalong lines that assures the saving of both time and labor.

A further purpose of this invention is to provide beam and column formsconstructed of extensible, adjustable parts so that the size of the formenclosure may be'varied at will.

Another object thereof is to provide beam or column forms built upvertically and transversely from a series of replaceableandinterchangeable metal plates so arranged and constructed as to avoidthe necessity of the form having to be cutto predetermined.

widths and sizes, and permitting a number of metal plates to be set upquickly for the same purpose. V

A further object of this invention is to pro vide a series ofinterchangeable, adjustable battens or bracing members designed to belengthened or reduced in length accordingly as the width of the formwalls vary.

A still further object of this invention is to provide a beam formextension designed to be built onto and removably connected to the upperend of the column form to allow the beam and column to be built from aunit form enclosure.

Another object of this invention is to provide a novel form of means forbracing the coinciding edges of superimposed metal plates of a form wallstructureto assure prop' er clamping pressure being exerted along thesemarginal parts of sectional walls, and to this end each batten orbracing unit consists of two parts, one part telescoping in the otherpart, and each part consists of two elongated parallel sills with crossarms interconnecting them into a rigid whole. In the spaces between thesills of the wider parts of each bracing unit are located channel-shapedmetal rests, their edges of the two arms thereof overlying thecoinciding edges of meeting wall plates in a plane at right angles tothe sills of the brace members which overlie these same surfaceslongitudinally. A series of T-shaped bolts are employed in a manner thattheircross heads may directly overlie and bear upon the opposing sillsof the narrow parts of each brace member, which are slidably adjustablein the wider parts of the same brace member, while other of these boltshave their cross heads overlying the channel shaped metal rests sincethey cannot directly span the sills of the wider brace parts. The shanksof the T-shaped bolts are screw-threaded and they are tapped into thecoinciding edges of the plates with thumb nuts engaged upon their innerends to clamp the heads of these bolts and draw the battens or bracemembers under pressure upon these plates.

I'also provide novel means for locking the corner-arranged brace membersor unit-s one to the other under mechanical frictional pressure for thepurpose of assuring that the corners of, the form will be held in rigidrela tionship and against buckling.

lVith the'above and other objects in View my invention consists in thecombination, arrangement and details of construction disclosed in thedrawings and specification, and then more particularly pointed out inthe appended claims. 80

In the drawings, which are merely illustrative of my invention, and inwhich similar reference characters designate similar parts thruout therespective views,

Figure 1 is a fragmental front elevation of a form wall made of twosuperposed plate sections, showing the battens for holding theircoinciding edges together,

Figure 2 is a sectional elevation, partly in section, of a. beam-makingform attachment for a wall of the column form,

Figure 3 is a fragmental View of portions of the front walls of twocoinciding metal plates,

Figure 4 is a detail sectional view showing endwise two verticallyarranged wall plates, showing a' batten overlying both of them, with aspecial bolt-head rest in this batten,

Figure 5 shows a similar arrangement of Figure 9 is a bott'onixplaniviewof Figure 7,1.

Figure 10 is a top plan View showing two corner sections of acolun1n--form*,' with the batten locking means,

Figure 11 is atop plan view, partly in section, of apprti-on'of apilaster .form showing its location .withrespectto.wallposts,

Figure 12.is a perspectiveview of overlap ping fornr sections,

Figure 13 is a sectional .view of'a corner part of aform showinguponawallthereofin. top. plan, closureplate .for a- :debris-removing:openlng,

plateishowing ,the closure. plate closed in the debris-removing.opening, and 1 Figure 17 is a view similar to Figure l6sbuti showingtheclosure .plateinopen position..

In thedrawings any number ofmetal. thin. plates .-are--. employedto-produce the -form: for

making apost or column or beam It is pre-,

ferredrthat the several :wallsections to-make up this form suchastheplates FA, B C, etc. be rightangular in.cross-sectiomeach havlngthelwalls 10rand. 11.. 111': Figurel2 it is shown. how theserightangular aplates overlie one up-H on the marginal .edge of..tllBOtllBl so as to be adjustableto vary. the widtlrof the wall of theform which they will serve "to. make. Figure l lshows flanges 12,.13-formed upon the. =cor-n er. parts of each. rightangular plate A' B;CjandDf respectively, the terminals beyonduthe, adj acent..extre1ne endofthe flange 12, so these parts are shoulderedione against the other.Here the flanges serveto reinforce the rightangular plates giving.themmore strength. and. durability.

Figure '14: shows how these plates are arrangedto produce a rectangularenclosure for building a concrete column or post therein; Since thesheet metal plates will be of inapprociable thickness their overlap willhardly interfere with the flush continuation of. eachiside {of the-comple'ted:column.

In Figure 11 :the "method "of securing "the. form platesabout Wall:posts is shown. where columns,..-..I-Iere it is .obser-vedthat the walls'11 of each rightangular plate may be formed with a rightangular flangeat the end opposite to, and parallel with the wall 10 of each plate. Thewall-making plates will have their inner marginal portions overlappingthe wall posts 18 while the flanges 19 will overlap these marginalportions of the wall plates 20. Otherwise :therwalls 10 of both plateswill adjustably overlap so as to provide one wall and part ofrightangular walls of the cohunn.

The. rectangulamenclosures thus produced will be caused to build up avertical structure and thiswill 'orunay be done by setting the loweredges of upper plates upon the upper edges of lower plates to produce aflush wall :-as shownz-in Figure 1, where A and T represent the walls.-as they are-superimposed and where 14 designates the coinciding edgesof these superimposed plates. In order to hold the superimposed walls ofthe proposed column form at any "height-where placed vertically it .isdesigneduto employ; bracing membersior units .in-the form of battens nowto-bedescribeda In Figure 1 it will be seen-:that each batten or bracingunit consistsof two-parts,'one part being narrowerthan the-other andtelescoping adj ustablyin-the other part. Each part is. similarlyconstructed as follows. wider part of the-adjustablebatten consists ofthe-elongated spacedapart parallel sills 21, 22 with-theintervening-space 26, the cross bars 23 -.connecting;.these sillstogether. The

narrower apart .of the batten.-.consists also of paralleli spacedsills24, 25, withthe inter-J vening;s pace-.27, andthe :cross bars 28connecting the sills in. a whole; The batten parts will overlie themarginal coincidingvportions or edgeswof..the-plates A.and TuIIl such alIlHllIIQl-ztllfit the longitudinalsills 21,124 of the adj ustable parts:of thebatten will overlap plate-A.-while the sills 22, of these samehold! the :ba-ttens eundernnechanicali pressure against plates-A .and:T.the following means is employed.

- It. is desineditoieniploy; any of a number of- T similarlysizedand:sha-ped@T+shaped bolts with 10A'of the walls. 10 ofwhich-platessprojeet" suitable cross-heads as the means of fastening thebattenssremovably; against the several Walls' made by the form forbuilding a column.

HaCGd'vEiQ-Zi ThQzI'GStS-wtllfl stationed in sucha manner thatitheright-angular walls 30, 31 ofeach. rest will bridge the coincidingedges14 of .the. superimposed formwplatesrfnand T trans-verselyi-of; thebattens andat right anglesato the line of overlapping; ofthe sills ofthe battens.- The rests will fit only in the space .26 between the sills-21,. 22" of. the wider pact of themovable batten .seetionsrand are Theenough to span the sills 24, 25 of the narrower batten section but notwide enough to bridge the sills 21, 22 of the wider part, hence thenecessity of using the rests to make them provide a rigid backing forthe cross heads 32' of the bolts to engage in their function of drawingthe battens against the plates A and T etc.

- In Figure 3 it will be seen that the coinciding edges of plates A andTare formed with bolt-hole recesses and 16 respectively, designed, whenthese plates are arranged in superimposed relation, to provide boltholes 17, so after the cross-heads of the bolts overlie the sills 24,and the tops 29 of the rests, the bolts will pass thru these bolt holes17 and project beyond the opposite faces of the plates A and T etc.Thumb nuts .36 may now be screwed home upon the screw-threaded terminalsof these bolts, and clamp the battens against the plates. With all partsthus arranged, the nuts could be loosened sufliciently to allow thebatten parts to be moved in and out one relatively to the other to bemade coextensive with the width of the form wall plates.

In order to apply suitable mechanical pressure against the corners ofthe form wall plates whereby they are interlocked at these pointsrigidly and against buckling or collapsation I employ means to lock thebattens that are arranged at right angles, at the corners of the form,together. For this purpose a handle 37 formed with an elongated slot (ifdesired to allow clearance against the bolt 34 that might projecttherethrough is desired) is provided, which has its inner end 3764pivoted upon a pin 38, mounted operatively in the sills 24, 25 of thebatten section. This handle may thus be swung inwardly in the recess 27of this batten section as shown in Figure 10 in dotted lines, thepurpose in doing so being to actuate a saddle member now to bedescribed.

The saddle locking member is composed of two parallel arms 40, 41pivoted upon a pin 39 connected to the lever 37 at its inner end,

while another locking pin 42 is connected to the free ends of arms 40,41 so as to rigidly span and connect the same. The ends of the sills 24,25 of the batten shown in end elevation in Figure 1 are provided with acorner notch shown at 43 in Figure 10, and in this notch the pin 42 mayextend when the handle is in dotted line position shown in Figure 10. Itwill now be seen that guide 56 secured rigidly to the bottom limits theback movement of lever handle 37, and as the handle moves backwardlyfrom dotted line position to full line position shown in Figure 10 thearms 55 40, 41 of the saddle piece are drawn back Thus it will bewardlysufliciently to force the pin 42 into recess 43, and to exert a pressureupon the batten shown endwise in Figure 1, effective to lock this battento the batten shown overlapping form plates A and T in Figure 1. In thismanner it is assured that the corner marginal edges of the rightangularly dis-- posed form walls will remain rigidly in proper place. x1

It may be desired to provide beam-making attachment to the column formsso'that the overhead horizontal beam may be molded at the same time withthe supporting columns or posts therefor. For this purpose a speciallyconstructed form is furnished shown particularly in'Figure 8. Here thereis disclosed a channel-shaped member composed of the trapezoidal-shapedparallel walls 46,and' 47 and the inclining bottom plate orwall 45,there being an outturned right-angular flange 48 and 49 formedrespectively upon the walls 46, 47 of this beamforming mem-- Figure 6may overlie the edges of portions- 444 of the form wall plate 44, andnowfasteners 53 will secure flanges to this wall. The use of the flanges49, 50 is optional. In this way the beam-making form will permit thebeam and column to be molded in one continuous operation.

I also providean efiective means of blowing or sweeping out dirt, anddebris that may accumulate in the completed form and for this purpose Iform a hole 52. in the bottom of any form plate, and a closure plate 55having a handle 56 will be slidably and frictionally guided inthe guidetracks 54 formed integrally upon the opposing edges of this recess orhole 52. In this way when the closure plate is raised access is giveninto the interior of the form whereby a hose may sprinkle water into theform to wash away dirt and similar or foreign particles. or the dirt maybe removed from this hole in any other effective manner;

' v I do not int-end to limit myself to the exact details ofconstruction but'aim to cover all variations falling within the purviewof the appended claims.

What I desire to claim and seek protection on is as foliows:

1. A form as described consisting of a se ries of rightangular cornerplates,arranged in adjustable relation and in overlapping position oneagainst the other to provide a rec- The bottom wall 45 is formed at itsupon'iall' side's ofa'the enclosuresin-a manner tangular enclosure,aplurality'of similar en;-v

clo'sures:beingzsuperimposed one upon the Otl'IBIYSO-Ztllitfitllilledges, co1nc1de,. a serles of rigid. telescoping'bracemembers arrangedners'iof'eachenolosure-to hold allbracemembers inxplace;

2:'- A1form"as described consistingof a series-of collapsiblerectangular enclosures built upzfrom metal plates,- said plates beingarranged'sin; superimposed relation to build a vertical structure,-aseparate rigid extensible brace" overlapping the coinciding edges 1 ofeachzwall. 1 formed .by, superimposed plates, bo1ts:..tapped'th'ru .thebracemembers and 'passingz'ithru the. coinciding-edges of saidsuperimposed plates, means carried by parts of the adjustable bracemembers designed to press said brace members against thecoinciding'ed-ges of the plates as said bolts are driven home,nutsclamping the bolts upon said plates, andimeans for manually exerting.a pressure uponuall .of :said brace members at the corners of theenclosures to assure rigid lockingaof all plates together.

3; Ina deviceas described, in combination a series =of vertical walls,each composed of aapluralit ysof plates arranged .insuperimposed-relation flush with each other, bracing unit'srarranged'transversely of each pair of 3 superimposed plates, and arranged tooverlapathecoinciding edges of each pair of superimposed 'plates,:eachunit consisting: of a pair of telescoping. adjustable clamps of whichone clampiis wider than the other, each clamp of each unit composed-of:a pair of longitudinal parallel-sills interconnected transversely,arseries; of: Tf-shapedi bolts having screw threaded shanks, some ofwhich have their headsoverlapping the sills, atrightangles,

plates;upon said'bolts to draw the units under pressure against theplates.

4. In a device as described, in combination T walls ;o a; building:Vforma consisting of :metal plates arranged in superimposed relation tobuild: vertical structures,ithe coinciding edges of :each: :pairz ofsuperimposed plates having complel nentalv notches .producingcboltfholes,

extensible brace members! overlapping each pairrof superimposed. platesso -"as to partly overlie themarginal edge of eachr.plate,nuts= clampingthe plates,bolt's having cross heads: overlapping the movable -members:ofreach brace member and receiving rSiLld. nuts in screwed relation,said bolts passingthru said bolt holes of the-plates," and means wherebyupon loosening the nuts, the'members of each: brace may be: extended.

5.111 adevice of'the kinddescribed; in. combination a rectangularformhavingyfour; walls, means whereby the walls may be.- ex+ tendedadjustably so as to vary the size of the enclosure of the form, aplurality of brace members arranged in overlapping position upon eachwall of the form, each form-wall being composed of .a plurality ofsuperimie posed sections the coincidingedges ofswhich are overlined bysaid brace members, means whereby said brace members may be adjusted,variably to the Varying,iwidthsofwtheforni walls, means independentof'the brace members and enclosed by:the latter for overlying. thecoinciding edges of said wall sections in? a-plane at right angles tothe lineof overlapping of the brace members uponsaid-walls, andremovable fasteners exerting, pressure uponv the last-named means andupon: the: brace members.

In witness whereof he has hereunderzset his hand this 25th day of June,1930. v

WILLIAMI Grl V-ENAIRDa

